A faster iterative method for solving temperature field of mass concrete with cooling pipes

摘要

Due to the low convergence speed of the conventional iterative method for solving temperature field of mass concrete with cooling pipes, the oscillation phenomenon in the process of iterative calculation was studied, and a new method, which can be used to avoid the numerical dispersion in the calculation of temperature field of mass concrete with cooling pipes and to raise the convergence speed, was put forward by improve the conventional iterative method in this paper. Using the proposed method, the concrete temperature field of the lock floor with cooling pipes during construction was simulated, and the calculated results and measured results were compared. The result show that the calculated values and measured values are in good agreement. Besides, this new method has higher convergence speed than the conventional iterative method, especially when the temperature increment of the water along the pipe is high enough, which approached maximum 10 times higher in this simulation. So this method is meaningful in the engineering application to save the calculation time.